公开(公告)号：US09369371B2

公开(公告)日：2016-06-14

申请号：US14292264

申请日：2014-05-30

Applicant: Cisco Technology, Inc.

Inventor： Clarence Filsfils ,  Daniel C. Frost ,  Stewart F. Bryant ,  Don R. Heidrich

IPC: H04L12/26 ,  H04L12/751 ,  H04L12/707 ,  H04L12/703 ,  H04L12/723 ,  H04L12/24

CPC classification number: H04L43/50 ,  H04L41/12 ,  H04L43/10 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

Abstract: A method and system are disclosed for use of segment routing in monitoring of a network path. In one embodiment, the method includes selecting a plurality of segment identifiers and assembling the segment identifiers into a segment identifier stack, where the segment identifier stack encodes a test path within the network for attempted routing of a test message. The method may further include inserting the segment identifier stack into a header associated with the test message, and forwarding the test message according to an entry in a forwarding table corresponding to the segment identifier at the top of the segment identifier stack. Interior gateway protocol advertisements may be used to communicate segment identifiers for creating or updating of the data structure or the forwarding table. In an embodiment, the system includes one or more network interfaces and a processor configured to perform the steps of the method.

Abstract translation: 公开了一种在监视网络路径中使用分段路由的方法和系统。 在一个实施例中，该方法包括选择多个段标识符并将段标识符组合成段标识符堆栈，其中段标识符堆栈对网络内的测试路径进行编码以尝试路由测试消息。 该方法还可以包括将段标识符堆栈插入到与测试消息相关联的报头中，以及根据与段标识符堆栈顶部的段标识符相对应的转发表中的条目转发测试消息。 内部网关协议广告可用于传送用于创建或更新数据结构或转发表的段标识符。 在一个实施例中，系统包括一个或多个网络接口和被配置为执行该方法的步骤的处理器。

公开(公告)号：US20140269266A1

公开(公告)日：2014-09-18

申请号：US14292264

申请日：2014-05-30

Applicant: Cisco Technology, Inc.

Inventor： Clarence Filsfils ,  Daniel C. Frost ,  Stewart F. Bryant ,  Don R. Heidrich

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04L41/12 ,  H04L43/10 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

Abstract: A method and system are disclosed for use of segment routing in monitoring of a network path. In one embodiment, the method includes selecting a plurality of segment identifiers and assembling the segment identifiers into a segment identifier stack, where the segment identifier stack encodes a test path within the network for attempted routing of a test message. The method may further include inserting the segment identifier stack into a header associated with the test message, and forwarding the test message according to an entry in a forwarding table corresponding to the segment identifier at the top of the segment identifier stack. Interior gateway protocol advertisements may be used to communicate segment identifiers for creating or updating of the data structure or the forwarding table. In an embodiment, the system includes one or more network interfaces and a processor configured to perform the steps of the method.

Abstract translation: 公开了一种在监视网络路径中使用分段路由的方法和系统。 在一个实施例中，该方法包括选择多个段标识符并将段标识符组合成段标识符堆栈，其中段标识符堆栈对网络内的测试路径进行编码以尝试路由测试消息。 该方法还可以包括将段标识符堆栈插入到与测试消息相关联的报头中，以及根据与段标识符堆栈顶部的段标识符相对应的转发表中的条目转发测试消息。 内部网关协议广告可用于传送用于创建或更新数据结构或转发表的段标识符。 在一个实施例中，系统包括一个或多个网络接口和被配置为执行该方法的步骤的处理器。